Outage in Twilio

SMS Delivery Failure to United Kingdom via Subset of Pre-Registered Sender ID

Resolved Minor
July 15, 2025 - Started 5 months ago - Lasted about 13 hours
Official incident page

Incident Report

We are experiencing SMS delivery failures to the United Kingdom via Pre-Registered Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.
Components affected
Twilio SMS, Europe Twilio Sender ID

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Latest Updates ( sorted recent to last )
RESOLVED 5 months ago - at 07/15/2025 09:58PM

We are no longer experiencing SMS delivery failures when sending messages to the United Kingdom via Pre-Registered Sender IDs. This incident has been resolved.

MONITORING 5 months ago - at 07/15/2025 08:05PM

We are observing recovery in SMS delivery failures when sending messages to the United Kingdom via Pre-Registered Sender IDs. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING 5 months ago - at 07/15/2025 03:24PM

We are continuing to investigate SMS delivery failures to the United Kingdom via Pre-Registered Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.

INVESTIGATING 5 months ago - at 07/15/2025 11:25AM

We are continuing to investigate SMS delivery failures to the United Kingdom via Pre-Registered Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

INVESTIGATING 5 months ago - at 07/15/2025 09:26AM

We are continuing to investigate SMS delivery failures to the United Kingdom via Pre-Registered Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING 5 months ago - at 07/15/2025 08:32AM

We are experiencing SMS delivery failures to the United Kingdom via Pre-Registered Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

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